參數(shù)資料
型號: LTC221
廠商: LINEAR TECHNOLOGY CORP
元件分類: 運動控制電子
英文描述: Micropower, Low Charge Injection, Quad CMOS Analog Switches with Data Latches
中文描述: 4-CHANNEL, SGL POLE SGL THROW SWITCH
文件頁數(shù): 5/12頁
文件大小: 140K
代理商: LTC221
LTC221/LTC222
5
2212fa
Switching Time Test Circuit
Switch output waveform shown for V
S
= constant with
logic input waveform as shown. Note that V
S
may be (+)
or (–) as per switching time test circuit. V
O
is the steady
APPLICATIOU
W
U
U
state output switch on. Feedthrough via gate capacitance
may result in spikes at leading and trailing edge of output
waveform.
CCRR-Channel to Channel Crosstalk Test Circuit
Switching Time Test Circuit
Charge Injection Test Circuit
OIRR-Off Isolation Test Circuit
LTC221/222 AI01
V
S
OV
OV
OV
3V
3V
LTC222
LOGIC INPUT
t
r
< 20ns
t
r
< 20ns
LTC221
LOGIC INPUT
t
r
< 20ns
t
r
< 20ns
SWITCH
INPUT
SWITCH
OUTPUT
50%
50%
V
O
0.9
0.9
LOGIC "0" = SW ON
LOGIC "1" = SW ON
V
O
t
ON
t
OFF
LTC221/222 AI02
S1
D1
(REPEAT TEST FOR IN2, IN3 AND IN4)
V
O
C
35pF
R
L
1k
R
L
R
L
+ R
DS(ON)
V
O
= V
S
IN1
SWITCH
OUTPUT
SWITCH
INPUT
V
S
= 2V
LOGIC
INPUT
LTC221/222 AI03
SX
R
GEN
V
GEN
DX
INX
V
O
C
L
= 1000pF
LTC221/222 AI04
OV
OV
3V
3V
V
O
LTC221 INX
LTC222 INX
V
O
V
IS THE MEASURED VOLTAGE ERROR DUE TO CHARGE INJECTION.
THE ERROR VOLTAGE IN COULOMBS IS
Q = V
L
V
O
OFF
OFF
ON
ON
ON
ON
LTC221/222 AI05
V
S
V
+
V
C
OIRR = 20 LOG
C = 0.001
μ
F//0.1
μ
F
CHIP CAPACITORS
SIGNAL
GENERATOR
C
15V
–15V
V
D
GND
V
IN
INX
V
S
V
D
R
L
1k
V
= 2V
P-P
f = 100kHz
CHAN A
ANALYZER
CHAN B
LTC221/222 AI06
V
S1
V
+
V
C
OIRR = 20 LOG
C = 0.001
μ
F//0.1
μ
F
CHIP CAPACITORS
SIGNAL
GENERATOR
C
NC
50
15V
–15V
V
D2
V
S2
V
D1
V
L
GND
V
IN
V
IN
IN2
IN1
V
S1
V
D2
R
L
1k
V
= 2Vp-p
f = 100kHz
CHAN A
ANALYZER
CHAN B
相關PDF資料
PDF描述
LTC221CS Micropower, Low Charge Injection, Quad CMOS Analog Switches with Data Latches
LTC221MJ Micropower, Low Charge Injection, Quad CMOS Analog Switches with Data Latches
LTC222 Micropower, Low Charge Injection, Quad CMOS Analog Switches with Data Latches
LTC221CJ Micropower, Low Charge Injection, Quad CMOS Analog Switches with Data Latches
LTC221CN Micropower, Low Charge Injection, Quad CMOS Analog Switches with Data Latches
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